PowerFlex 400V vs 480V Input Voltage

This shows how the PF753/PF755 Drives Input Voltage can be changed.

Parameter: 305

Selects the voltage class operation of the drive. For 400 / 480V drives "Low Voltage" = 400V and "High Voltage" = 480V. This setting affects how the drive will appear as a node on a system (400V or 480V), and also affects the drive’s current rating, parameter 21 [Rated Amps]. If the setting of this parameter is changed, check the setting of P422 [Current Limit 1] and 423 [Current Limit 2].

This parameter is only reset (to original factory setting) when Set Defaults "All" (not recommended) is executed.




Low Voltage


High Voltage